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Search: Posts Made By: Portlandjim
Showing results 1 to 50 of 236
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08-29-24, 01:07 PM
Replies: 9
Views: 217
Posted By Portlandjim

Thanks for the compliment! The 4.5mm lockring has...

Thanks for the compliment! The 4.5mm lockring has sold. Jim Merz
08-29-24, 08:21 AM
Replies: 9
Views: 217
Posted By Portlandjim

I made reproduction Campagnolo bottom bracket...

I made reproduction Campagnolo bottom bracket lockrings from titanium some time ago. These are rather difficult to make. The 6-4 titanium material required is 1.75" solid bar, expensive and most of...
08-28-24, 01:04 PM
Replies: 9
Views: 217
Posted By Portlandjim

Reason for thicker BB lockring

A 4.5mm thick lockring is used when the BB shell has been machined narrower by 1.0mm total, it covers the threads on the left side BB cup. Masi bikes often came with a 4.5mm lock ring. My theory for...
07-11-24, 07:26 AM
Replies: 14
Views: 1,336
Posted By Portlandjim

You are correct about the year; I think it was...

You are correct about the year; I think it was most likely sold in '83. Your comment about the EX/AX headset, that it needs a special wrench, is not exactly correct. Shimano did make a special wrench...
07-08-24, 01:38 PM
Replies: 0
Views: 113
Posted By Portlandjim

YAKIMA SteelHead Fork Mount Roof Rack Skewers

https://cimg5.ibsrv.net/gimg/bikeforums.net-vbulletin/1800x1627/bd9t2915_0169a18589388cafc3734dc984f6434ed0dceb65.jpg...
07-08-24, 07:05 AM
Replies: 9
Views: 991
Posted By Portlandjim

Yoshi Kono used Tange tubing when we were working...

Yoshi Kono used Tange tubing when we were working together. The Columbus SL tube set is very similar to the gauges used in the Allez frames I designed. We did some later Allez top model frames using...
07-07-24, 05:48 PM
Replies: 9
Views: 991
Posted By Portlandjim

I designed this frame. Whoever purchases this...

I designed this frame. Whoever purchases this will get a very good deal! Tim Neenan wanted to live in SLO and work from there, but that was not acceptable to Mike. I took over the technical side of...
06-11-24, 05:37 PM
Replies: 4
Views: 497
Posted By Portlandjim

Wikipedia says: American Bicycle...

Wikipedia says:

American Bicycle Manufacturing was a company making mostly custom MTB frames, founded by Fred Schilplin (February 16, 1947 – April 13, 2005) in St. Cloud, Minnesota, United...
06-06-24, 08:45 PM
Replies: 9
Views: 783
Posted By Portlandjim

Yes, stainless steel lugs. See my post just now...

Yes, stainless steel lugs. See my post just now about the bike, Exxon Graftek. Jim Merz
06-06-24, 08:42 PM
Replies: 4
Views: 589
Posted By Portlandjim

Show and Tell Exxon Graftek

I built this bike up a few years ago. I don't think I have ever shared it on C & V here, here's a link to some more photos:

https://photos.app.goo.gl/mJ59NGTXpjtyLcpK9

Since these photos were...
06-06-24, 08:29 PM
Replies: 9
Views: 783
Posted By Portlandjim

Aluminum brake pad holders came on the later...

Aluminum brake pad holders came on the later short reach Super Record with script logo and Cobalto brakes. I've seen these pad holders sell for $100 a set! I made the studs from 6-4 titanium and have...
06-06-24, 08:08 PM
Replies: 9
Views: 783
Posted By Portlandjim

Super Record brakes have levers with holes, the...

Super Record brakes have levers with holes, the calipers are the same as Record. The calipers shown in the offer look to be the short reach version. My eyes are seeing aluminum pad holders. If so,...
05-21-24, 08:56 AM
Replies: 6,740
Views: 905,536
Posted By Portlandjim

I saw this on Facebook the other day. ...

I saw this on Facebook the other day.

https://cimg0.ibsrv.net/gimg/bikeforums.net-vbulletin/1814x1708/screen_shot_05_20_24_at_06_28_am_9a95aa40d746ad0bda1a8ed5dbda834353bddb10.png
05-19-24, 10:12 AM
Replies: 158
Views: 10,136
Posted By Portlandjim

Modified 1946 Holdsworth

I tend to do bike projects that have historic importance, some technical detail that changed the development of the bicycle. Epitomize the best bicycle from a point in the past. To me this means that...
05-01-24, 05:36 PM
Replies: 35
Views: 2,146
Posted By Portlandjim

It's not working. I talked to Guy Apple, he sent...

It's not working. I talked to Guy Apple, he sent Google a request for restarting the page. He said there is not feedback as to what is going on.

Jim Mer
05-01-24, 08:50 AM
Replies: 6,740
Views: 905,536
Posted By Portlandjim

WTB Dura-Ace 7200 EX brake pad guides

I need 4 of these wire brake pad wheel guides. The Dura-Ace EX brakes were from the late 1970's, the first photo shows the guide that I need 4 of. 2nd photo shows the caliper that these wire guides...
04-27-24, 09:00 AM
Replies: 75
Views: 6,002
Posted By Portlandjim

On the contrary, the set up looks great!...

On the contrary, the set up looks great! Including the stem. Jim Merz
04-13-24, 11:35 AM
Replies: 6,740
Views: 905,536
Posted By Portlandjim

WTB Campagnolo Record left crank arm 175 non-fluted

Anyone have a 175mm left side non-fluted Campagnolo crank arm I could purchase? I found these photos on the internet, showing the left side with a 11 inside of a square. My right arm has this date...
04-09-24, 09:24 AM
Replies: 46
Views: 2,608
Posted By Portlandjim

I have this CX bike. The first time MTB type...

I have this CX bike. The first time MTB type bikes were raced in a USCF National was 1981. This bike and 2 others built by Tom Ritchey were in the race. This bike is right at 20 pounds!
...
03-20-24, 05:35 PM
Replies: 18
Views: 1,279
Posted By Portlandjim

Greg Softley has a very comprehensive decal...

Greg Softley has a very comprehensive decal selection, plus he's a good guy. He's in Australia, but decals fit in a normal letter, so the shipping is no issue. His web page is here:

Vintage...
03-18-24, 06:25 PM
Replies: 173
Views: 72,633
Posted By Portlandjim

1973 Cinelli catalog with Columbus tubing

https://drive.google.com/file/d/1HJq072snHwU4u-dIQnuXdb1H7nxaBS70/view?usp=sharing

I scanned this wonderful catalog. I hope it's not already on this list. Jim Merz
03-09-24, 06:56 PM
Replies: 17
Views: 1,829
Posted By Portlandjim

Sante was Shimano. ...

Sante was Shimano.

https://velobase.com/ViewComponent.aspx?ID=01d429f9-bcb7-48d1-8adc-7c82d3ceb885&Enum=115
03-07-24, 04:14 PM
Replies: 38
Views: 2,697
Posted By Portlandjim

I just finished a total inspection, cleaning and...

I just finished a total inspection, cleaning and regreasing the Merz RB057 bike. It really looks nice! More photos here: https://photos.app.goo.gl/t8u5z2Be5RJNeAXH8


The measurements are: C-T...
03-05-24, 06:31 PM
Replies: 71
Views: 4,437
Posted By Portlandjim

I have at least one Merz Triplizer middle ring,...

I have at least one Merz Triplizer middle ring, NOS. The one I noticed recently is 46 teeth. I don't have any 31 or 32 tooth Merz inner rings, but do have a Campagnolo 36 tooth 100 BCD ring. If...
03-04-24, 09:56 AM
Replies: 4
Views: 532
Posted By Portlandjim

Open C shift levers

I have the exact same pair as on the OP, GS rear derailleur with cable adjuster and shift levers with slotted screws. They came off of a 1955 Cinelli SC. The shift levers have a closed C as shown...
03-03-24, 05:32 PM
Replies: 71
Views: 4,437
Posted By Portlandjim

https://cimg4.ibsrv.net/gimg/bikeforums.net-vbulle...

https://cimg4.ibsrv.net/gimg/bikeforums.net-vbulletin/909x1200/bd9t0243_1206c5b0e59125bc0fe3d1341cd2858e20f93475.jpg
I like the way the stock bolts look, but made my own using titanium! Socket head...
03-03-24, 04:46 PM
Replies: 71
Views: 4,437
Posted By Portlandjim

Cantilever brake mounting bolts

The 12mm hex M6 bolt used for the Mafac cantilever brakes is the same as those used on the Racer brakes. Jim
03-03-24, 09:04 AM
Replies: 71
Views: 4,437
Posted By Portlandjim

I would just have a framebuilder move the brake...

I would just have a framebuilder move the brake posts down to the correct location. I did that on a frame and fork and Ed Litton touched up the paint. One could barely tell that it had been repainted...
02-27-24, 01:53 PM
Replies: 8
Views: 496
Posted By Portlandjim

Well, I'm not dead yet. Jim

Well, I'm not dead yet. Jim
02-27-24, 11:47 AM
Replies: 71
Views: 4,437
Posted By Portlandjim

tubing and racks

I used some rare heavy gauge 531 down tubes, I can't remember the thickness. But, heavier than what you mention. 1.2/1.0/1.2 I think.

My racks were custom made to fit each frame, not...
02-27-24, 10:17 AM
Replies: 8
Views: 496
Posted By Portlandjim

Number of Merz frames

Yes, the total number of Merz frame is in that range. Jim
02-27-24, 09:13 AM
Replies: 8
Views: 496
Posted By Portlandjim

Merz Mfg. frame build sheets

https://goo.gl/photos/6ag59tRKvPLy1KnD8

I have shared this link on C & V​ in the past, but it was buried in other posts. There was a question about whether I made ​many large size frames on...
02-27-24, 08:59 AM
Replies: 71
Views: 4,437
Posted By Portlandjim

I wasn't paying attention to this thread and just...

I wasn't paying attention to this thread and just noticed it. There is zero chance this was built using 753 tubing, it was built before 753 was available in the USA. Also, this tubing would not be...
02-26-24, 08:08 AM
Replies: 38
Views: 2,697
Posted By Portlandjim

You made my day!

This is just about the best way to wake up on a Monday morning just before I have to drive into Monterey to visit the DMV! Exactly decribes my bicycle frame building goal. Thank you so much! Jim Merz
02-25-24, 10:17 AM
Replies: 38
Views: 2,697
Posted By Portlandjim

Do I worry about how my Merz bikes were used?

When I was building Merz bikes, starting around 50 years ago, I don't remember ever worrying about if my bikes were put to good use or not. As I mentioned in an earlier comment, almost all my...
02-25-24, 08:52 AM
Replies: 38
Views: 2,697
Posted By Portlandjim

Sportif

I don't remember anything about making this bike and the build sheet is missing. The fender eyelets would have been requested by the customer, all Merz frames were custom. The chainstay length is...
02-24-24, 06:14 PM
Replies: 38
Views: 2,697
Posted By Portlandjim

The guy I built this for was really into riding....

The guy I built this for was really into riding. But his knee went south and the fix meant he couldn't ride a bike anymore. So this bike did get used and certainly appreciated. Very few of my custom...
02-24-24, 05:49 PM
Replies: 38
Views: 2,697
Posted By Portlandjim

Yes, the initials on the frame number are the...

Yes, the initials on the frame number are the customers name. The number is sequential from the first Merz frame.

Jim Merz
02-24-24, 05:34 PM
Replies: 38
Views: 2,697
Posted By Portlandjim

Merz frame build sheets

Here is a link to the surviving Merz Mfg. build sheets: https://goo.gl/photos/6ag59tRKvPLy1KnD8

Check out the link, there were many 56cm frames. Although I wrote the sizes in inches on these...
02-24-24, 05:05 PM
Replies: 38
Views: 2,697
Posted By Portlandjim

I stripped the parts off and cleaned the frame...

I stripped the parts off and cleaned the frame and fork with soapy water. The paint is in great shape! Very slight spider web rust under the paint here and there. The fork steerer shows that I was...
02-24-24, 02:26 PM
Replies: 38
Views: 2,697
Posted By Portlandjim

Mathauser pads

I've never seen these finned pads come loose either. But, close to 50 years is going to make the compound "age". I'm going to use the original Campagnolo pad holders. Jim
02-24-24, 02:18 PM
Replies: 38
Views: 2,697
Posted By Portlandjim

Braze ons

Thanks! The frame has braze on shifter bosses, BB cable guides and divers bell chainstay cable stop. Jim
02-24-24, 01:43 PM
Replies: 38
Views: 2,697
Posted By Portlandjim

"Barn Find" Merz bike RB057

I just returned from Portland, to visit my son Carter and his family but also to pick up this Merz bike. The customer I ​​made if for in 1975 had knee problems that meant he couldn't ride bikes after...
02-12-24, 06:43 PM
Replies: 30
Views: 1,887
Posted By Portlandjim

This is what I found about external vibration...

This is what I found about external vibration affecting a mechanical watch:

WEARING AN AUTOMATIC WATCH ON A MOTORCYCLE OR BICYCLE
An automatic watch consists of a multitude of parts that are...
02-12-24, 06:16 PM
Replies: 30
Views: 1,887
Posted By Portlandjim

Stainless steel and self winding, but still a...

Stainless steel and self winding, but still a great bicycle riding watch! Patek Philippe Aquanaut 5165A
...
02-11-24, 09:20 PM
Replies: 68
Views: 6,240
Posted By Portlandjim

31 tooth chainring

I made Merz 31 tooth chainrings with a 100mm BCD, that was way back when I was building frames in Portland. I don't have any of them that arn't on a bike, so can't supply one. Plus, you asked for one...
02-10-24, 08:19 AM
Replies: 6,740
Views: 905,536
Posted By Portlandjim

Simplex SLJ5000 RD part 3557

I don't have the plate you're looking for, but I do have one NOS black aluminum nut (?) thing that fits into the plate. The flat is prone to rounding off, it's not ovious how to remove the rear...
02-08-24, 10:20 AM
Replies: 27
Views: 1,624
Posted By Portlandjim

This link mentions the Wright Bro​thers pedal...

This link mentions the Wright Bro​thers pedal thread innovation:

https://www.wright-brothers.org/Information_Desk/Just_the_Facts/Bicycles/Wright_Bicycles.htm

The relevant content here:

In...
02-05-24, 09:15 AM
Replies: 22
Views: 2,020
Posted By Portlandjim

Major Taylor documentary coming 2/26/24

I just noticed that this new documentary about Major Taylor will be shown at the end of the month. Details here:

https://indianapublicmedia.org/majortaylor/

It looks like a must watch show!
...
02-04-24, 05:29 PM
Replies: 28
Views: 8,545
Posted By Portlandjim

Sequoia design timeline

Tim designed the first Sequoia, 1981 or so. He left right before I started working for Specialized around July 1982. I redesigned all the bike frames, including the Sequoia model, as one my first...
Showing results 1 to 50 of 236
 


 
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